Omron SYSMAC CPM2B-S001M-DRT Operation Manual page 43

Board Components and their Functions
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8. Output Indicators
The output indicators are lit when the corresponding output terminal is ON.
The indicators are lit during I/O refreshing. When an output is being used
as a pulse output, the corresponding will remain lit while pulses are being
output.
9. Peripheral Port
Connects the PC to a Programming Device (including Programming Con-
soles), host computer, or standard external device.
10. RS-232C Port
Connects the PC to a Programming Device (excluding Programming Con-
soles), host computer, Programmable Terminal, or standard external de-
vice.
11. DeviceNet Terminals
12. CompoBus/S Terminals
13. Expansion I/O Connector
Connects the CPU Board to an Expansion I/O Board. Up to 3 Expansion I/
O Boards can be connected to a CPU Board.
14. DIP Switch
The DIP switch settings determine the DeviceNet communications speed
and control the communications settings for the communications port (pe-
ripheral port and RS-232C port).
• DeviceNet communications speed
Pin 1 Pin 2
ON
OFF OFF
ON OFF 250 kbps
OFF ON 500 kbps
ON ON Not used (invalid setting)
• RS-232C and Peripheral Port Settings
Pin 3
OFF The ports operate according to the settings in the PC Setup.
RS-232C port settings: DM 6645 to DM 6649
Peripheral port settings: DM 6650 to DM 6654
ON The ports operate with the standard communications settings.
• Operating Mode at Startup
Pin 4 determines the operating mode at startup only if there isn't a Pro-
gramming Device connected to the peripheral port.
Programming Device
connected
None
Programming Console
Other device
Note a) All four fins are set to OFF when the Board is shipped.
b) Always turn OFF the power supply before changing DIP Switch
settings. When changing pin settings, use an insulated tool that
has a fine tip such as a precision screwdriver with a plastic handle.
Speed
125 kbps
Effective port settings
Startup mode with
pin 4 OFF
RUN mode
Operating mode set on the Programming
Console's mode switch
PROGRAM mode
Section 2-2
Max. transmission line
length (see note)
500 m max.
250 m max.
100 m max.
Startup mode with
pin 4 ON
PROGRAM mode